The Wal-Mart store in Plainfield was evacuated shortly after 8 a.m. Tuesday after a contractor accidentally cut into a refrigerant line in the dairy cooler. Emergency crews from Plainfield, Avon and Danville responded to the call. About 100 customers and employees were inside the store at the time. Authorities said no one was injured. Hazardous materials crews shut off the line and tested the air inside the store to make sure it was safe before allowing employees to return about 9:30 a.m. The store is expected to reopen this morning.